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Malaria, FalciparumPhase 1NCT06171113

A Study to Investigate the Safety of GSK4024484 in Healthy Adult Participants

A Phase 1 study testing GSK4024484C in people with Malaria, Falciparum, run by GlaxoSmithKline at 1 site in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The primary purpose of the study is to characterise the safety of GSK4024484 in healthy participants within a controlled pharmacokinetic (PK) range, and the effect of food on the study intervention. Read more about this study

Who is it for?
Ages 18 to 60 yearsHealthy volunteers can take part
Conditions the study is for
Malaria, Falciparum
What is being tested?
GSK4024484C
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
123 participants
Where
1 siteUnited Kingdom
Study dates
11 Dec 2023to 16 Jun 2026
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 60 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Participant must be 18 to 60 years of age inclusive, at the time of signing the informed consent.
  • Participants who are considered healthy as determined by medical evaluation including medical history, physical examination, laboratory tests, and cardiac assessment.
  • A participant with a clinical abnormality or laboratory parameter(s) which is/are not specifically listed in the inclusion or exclusion criteria, or outside the normal reference range for the population being studied, may be included only if the Investigator considers, that the finding is unlikely to introduce additional risk factors for the participant and will not interfere with the study procedures or endpoints.
  • ALT (Alanine transaminase) and AST (Aspartate transaminase) within the normal range at screening.
  • Total bilirubin within the normal range unless the participant is known to have Gilbert's syndrome.
  • Body weight ≥50kg, and BMI within the range 19 to 32 kilogram per square metre (kg/m^2) inclusive.
  • Male participants and female participants who are not of child bearing potential.
  • The participant is able to understand and comply with protocol requirements, instructions and protocol-stated restrictions.

Who cannot join

  • History or presence of cardiovascular (including hypertension), respiratory, hepatic, renal, gastrointestinal, endocrine, hematologic, or neurological disorders, capable of significantly altering the absorption, metabolism, or elimination of drugs; constituting a risk when taking the study intervention or interfering with the interpretation of data in the opinion of the investigator.
  • Current or chronic history of liver disease or known hepatic or biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones).
  • An average weekly alcohol intake of >14 units a week within 6 months prior to the study. One unit is equivalent to 8 g of alcohol: a half-pint (~240 ml) of beer, 1 glass (125 ml) of wine or 1 (25 ml) measure of spirits.
  • QTcF (Fridericia's formula) >450 msec based on average of triplicate ECGs. The QTcF is the QT interval corrected for heart rate according to QTcF.
  • More than 100 ventricular ectopic complexes in 24 hrs by Holter screening or any other clinically significant Holter abnormalities determined by the investigator.
  • Presence or history of cardiac arrhythmias or cardiac disease or a family or personal history of long QT syndrome.
Show all 22Show fewer
  • Heart rate <40 or >100 beats per minute (bpm).
  • Evidence of previous myocardial infarction or any clinically significant conduction abnormality such as (including but not specific to left complete bundle branch block, AV block [2nd degree or higher], WPW syndrome). Long standing RBBB is permitted.
  • Past or intended use of over-the-counter or prescription medication, including herbal medications, CBD-based products, PPIs or H2 antagonists within 7 days (or 14 days if the drug is a potential enzyme inducer) or 5 half-lives (whichever is the longest) prior to dosing. Other concomitant medication may be considered on a case by case basis by the investigator in consultation with the medical monitor. Paracetamol is permitted (capped at ≤2 grams/day).
  • Participation in the study that would result in loss of blood or blood products in excess of 500 mL within a 56-day period.
  • Exposure to more than 4 new chemical entities within 12 months prior to the first dosing day.
  • Current enrolment or past participation (within the last 30 days before planned first dose in this study) in any other clinical study involving an investigational study intervention or any other type of medical research.
  • Participants previously dosed in this study.
  • Presence of HBsAg [or HBcAb] at screening or within 3 months prior to first dose of study intervention.
  • Positive hepatitis C antibody test result at screening or within 3 months prior to first dose of study intervention.
  • Positive hepatitis C RNA (ribonucleic acid) test result at screening or within 3 months prior to first dose of study intervention.
  • Positive pre-study drug/alcohol screen.
  • Positive HIV antibody test.
  • Carbon monoxide levels indicative of smoking or more than 10 pack year history or regular use of tobacco- or nicotine-containing products within 6 months prior to screening.
  • Use of known recreational drugs or drugs of abuse.
  • Sensitivity to any of the study treatments, or components thereof, or drug or other allergy that, in the opinion of the Investigator or GSK Medical Monitor, contraindicates participation in the study.
  • A positive confirmation of COVID-19 infection according to local procedures.

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • GSK Investigational Site

    Cambridge, CB2 0GG

Other trials in United Kingdom

About this study

Official title: A Phase 1, Randomised, Double Blind Placebo-controlled, First Time in Human Study to Evaluate the Safety and Pharmacokinetics of Single and Multiple Oral Doses and Food Effect of GSK4024484 in Healthy Adult Participants.

The primary purpose of the study is to characterise the safety of GSK4024484 in healthy participants within a controlled pharmacokinetic (PK) range, and the effect of food on the study intervention.

Being tested
GSK4024484C, Placebo
Keywords
First time in human, Safety, Pharmacokinetics, GSK4024484, Healthy adults, Food effect, Single oral doses, Multiple oral doses
Medical subject headings
Malaria, Falciparum

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • GSK4024484CDrug

    Doses administrated orally with 240 mL of water.

  • PlaceboDrug

    Doses administrated orally with 240 mL of water.

Study groups in NCT06171113
Study groupRoleWhat they receive
6 mg single ascending dose (SAD) GroupExperimentalParticipants receive a 6 mg single dose of GSK4024484, in a fasted state.
Receives: Drug: GSK4024484C
12 mg SAD GroupExperimentalParticipants receive a 12 mg single dose of GSK4024484 in a fasted state.
Receives: Drug: GSK4024484C
24 mg SAD GroupExperimentalParticipants receive a 24 mg single dose of GSK4024484 in a fasted state.
Receives: Drug: GSK4024484C
48 mg SAD GroupExperimentalParticipants receive a 48 mg single dose of GSK4024484 in a fasted state.
Receives: Drug: GSK4024484C
96 mg SAD GroupExperimentalParticipants receive a 96 mg single dose of GSK4024484 in a fasted state.
Receives: Drug: GSK4024484C
192 mg SAD GroupExperimentalParticipants receive a 192 mg single dose of GSK4024484, in a fasted state.
Receives: Drug: GSK4024484C
Food Effect GroupExperimentalParticipants receive a single study dose of GSK4024484 in a fed state.
Receives: Drug: GSK4024484C
300 mg SAD GroupExperimentalParticipants receive a 300 mg single dose of GSK4024484, in a fasted state.
Receives: Drug: GSK4024484C
400 mg SAD GroupExperimentalParticipants receive a 400 mg single dose of GSK4024484, in a fasted state.
Receives: Drug: GSK4024484C
Optional SAD GroupExperimentalParticipants may be included in this group, to allow flexibility if the dose escalation needs modification or a dose level needs to be added or repeated.
Receives: Drug: GSK4024484C
Placebo SAD GroupPlacebo comparatorParticipants receive placebo in a fed or fasted state.
Receives: Drug: Placebo
150 mg multiple ascending doses (MAD) GroupExperimentalParticipants receive 150 mg per day of GSK4024484 during 3 subsequent days (450 mg total).
Receives: Drug: GSK4024484C
300 mg MAD GroupExperimentalParticipants receive 300 mg per day of GSK4024484 during 3 subsequent days (900 mg total).
Receives: Drug: GSK4024484C
Optional MAD GroupExperimentalParticipants may be included in this group, to allow flexibility if the dose escalation needs modification or a dose level needs to be added or repeated.
Receives: Drug: GSK4024484C
Placebo MAD GroupPlacebo comparatorParticipants receive placebo during 3 subsequent days.
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percentage of participants reporting serious adverse events (SAEs) after single ascending doses

    An SAE is defined as any untoward medical occurrence that results in death, is life threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect in the offspring of a study participant or an abnormal partner pregnancy outcome.

    Measured: From the signing of the informed consent (Day -2) until the follow up contact (Day 38 +/- 3 days post dose)

  2. Percentage of participants reporting SAEs by severity after single ascending doses

    Mild SAE = a type of adverse event (AE) that is usually transient and may require only minimal treatment or therapeutic intervention. The event does not generally interfere with usual activities of daily living. Moderate SAE = a type of AE that is usually alleviated with additional specific therapeutic intervention. The event interferes with usual activities of daily living, causing discomfort but poses no significant or permanent risk of harm to the research participant. Severe SAE = a type of AE that interrupts usual activities of daily living, or significantly affects clinical status, or may require intensive therapeutic intervention.

    Measured: From the signing of the informed consent (Day -2) until the follow up contact (Day 38 +/- 3 days post dose)

  3. Percentage of participants reporting SAEs after multiple ascending doses

    An SAE is defined as any untoward medical occurrence that results in death, is life threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect in the offspring of a study participant or an abnormal partner pregnancy outcome.

    Measured: From the signing of the informed consent (Day -2) until the follow up contact (Day 40 +/- 3 days post dose)

  4. Percentage of participants reporting SAEs by severity after multiple ascending doses

    Mild SAE = a type of AE that is usually transient and may require only minimal treatment or therapeutic intervention. The event does not generally interfere with usual activities of daily living. Moderate SAE = a type of AE that is usually alleviated with additional specific therapeutic intervention. The event interferes with usual activities of daily living, causing discomfort but poses no significant or permanent risk of harm to the research participant. Severe SAE = a type of AE that interrupts usual activities of daily living, or significantly affects clinical status, or may require intensive therapeutic intervention.

    Measured: From the signing of the informed consent (Day -2) until the follow up contact (Day 40 +/- 3 days post dose)

  5. Percentage of participants reporting non-serious AEs after single ascending doses

    An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study intervention, whether or not considered related to the study intervention.

    Measured: From study dose administration (Day 1) until the follow up contact (Day 38 +/- 3 days post dose)

  6. Percentage of participants reporting non-serious AEs by severity after single ascending doses

    Mild AE = a type of AE that is usually transient and may require only minimal treatment or therapeutic intervention. The event does not generally interfere with usual activities of daily living. Moderate AE = a type of AE that is usually alleviated with additional specific therapeutic intervention. The event interferes with usual activities of daily living, causing discomfort but poses no significant or permanent risk of harm to the research participant. Severe AE = a type of AE that interrupts usual activities of daily living, or significantly affects clinical status, or may require intensive therapeutic intervention.

    Measured: From study dose administration (Day 1) until the follow up contact (Day 38 +/- 3 days post dose)

  7. Percentage of participants reporting non-serious AEs after multiple ascending doses

    An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study intervention, whether or not considered related to the study intervention.

    Measured: From first study dose administration (Day 1) until the follow up contact (Day 40 +/- 3 days post dose)

  8. Percentage of participants reporting non-serious AEs by severity after multiple ascending doses

    Mild AE = a type of AE that is usually transient and may require only minimal treatment or therapeutic intervention. The event does not generally interfere with usual activities of daily living. Moderate AE = a type of AE that is usually alleviated with additional specific therapeutic intervention. The event interferes with usual activities of daily living, causing discomfort but poses no significant or permanent risk of harm to the research participant. Severe AE = a type of AE that interrupts usual activities of daily living, or significantly affects clinical status, or may require intensive therapeutic intervention.

    Measured: From first study dose administration (Day 1) until the follow up contact (Day 40 +/- 3 days post dose)

Secondary outcomes (19)
  1. Part A: Area under the plasma drug concentration versus time curve from time zero (pre-dose) to last time of quantifiable concentration [AUC(0-t)] of GSK4024484C following single ascending doses in fasting conditions

    Measured: From study dose administration (Day 1) until the follow up contact (Day 29 +/- 1 day post dose)

  2. Part A: Area under the plasma drug concentration versus time curve from zero (pre-dose) extrapolated to infinite time [AUC(0-∞)] of GSK4024484C following single ascending doses in fasting conditions

    Measured: From study dose administration (Day 1) until the follow up contact (Day 29 +/- 1 day post dose)

  3. Part A: Maximum observed plasma drug concentration (Cmax) of GSK4024484C following single ascending doses in fasting conditions

    Measured: From study dose administration (Day 1) until the follow up contact (Day 29 +/- 1 day post dose)

  4. Part A: Time to maximum observed plasma drug concentration (Tmax) of GSK4024484C following single ascending doses in fasting conditions

    Measured: From study dose administration (Day 1) until the follow up contact (Day 29 +/- 1 day post dose)

  5. Part A: Apparent terminal half-life (t1/2) of GSK4024484C following single ascending doses in fasting conditions

    Measured: From study dose administration (Day 1) until the follow up contact (Day 29 +/- 1 day post dose)

  6. Part B: AUC(0-t) of GSK4024484C following multiple ascending doses in fasting conditions

    Measured: From first study dose administration (Day 1) until the follow up contact (Day 33 +/- 1 day post dose)

  7. Part B: AUC(0-∞) of GSK4024484C following multiple ascending doses in fasting conditions

    Measured: From first study dose administration (Day 1) until the follow up contact (Day 33 +/- 1 day post dose)

  8. Part B: Cmax of GSK4024484C following multiple ascending doses in fasting conditions

    Measured: From first study dose administration (Day 1) until the follow up contact (Day 33 +/- 1 day post dose)

  9. Part B: Tmax of GSK4024484C following multiple ascending doses in fasting conditions

    Measured: From first study dose administration (Day 1) until the follow up contact (Day 33 +/- 1 day post dose)

  10. Part B: t1/2 of GSK4024484C following multiple ascending doses in fasting conditions

    Measured: From first study dose administration (Day 1) until the follow up contact (Day 33 +/- 1 day post dose)

  11. Part B: Area under the plasma drug concentration versus time curve from zero to time of trough plasma concentration [AUC(0-tau)] of GSK4024484C following multiple ascending doses in fasting conditions

    Measured: Part B: From first study dose administration (Day 1) until the follow up contact (Day 33 +/- 1 day post dose)

  12. Part B: Trough plasma concentration (Ctau) of GSK4024484C following multiple ascending doses in fasting conditions

    Measured: From first study dose administration (Day 1) until the follow up contact (Day 33 +/- 1 day post dose)

  13. Part A: AUC(0-t) of GSK4024484C following single ascending doses in fed conditions

    Measured: From study dose administration (Day 1) until the follow up contact (Day 29 +/- 1 day post dose)

  14. Part A: AUC(0-∞) of GSK4024484C following single ascending doses in fed conditions

    Measured: From study dose administration (Day 1) until the follow up contact (Day 29 +/- 1 day post dose)

  15. Part A: Cmax of GSK4024484C following single ascending doses in fed conditions

    Measured: From study dose administration (Day 1) until the follow up contact (Day 29 +/- 1 day post dose)

  16. Part A: Tmax of GSK4024484C following single ascending doses in fed conditions

    Measured: From study dose administration (Day 1) until the follow up contact (Day 29 +/- 1 day post dose)

  17. Part A: t1/2 of GSK4024484C following single ascending doses in fed conditions

    Measured: From study dose administration (Day 1) until the follow up contact (Day 29 +/- 1 day post dose)

  18. Part B: Observed accumulation ratio (R) of GSK4024484 based on AUC(Ro) following multiple ascending doses

    Measured: At Day 1 and at Day 3

  19. Part B: Observed accumulation ratio (R) of GSK4024484 based on Cmax(RCmax) following multiple ascending doses

    Measured: At Day 1 and at Day 3

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Dec 2023
  2. Study start11 Dec 2023
  3. Primary completion16 Jun 2026
  4. Study completion16 Jun 2026

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Sequential
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
123 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06171113
Sponsor's protocol ID
218708
Status last verified
Jun 2026
First submitted
6 Dec 2023
Last updated
8 Jul 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Study Sponsor will assess requests from qualified researchers for anonymized individual patient-level data and related study documents. Data sharing is subject to certain criteria, conditions, and exceptions. For further information, refer to https://d3l8i7lo48obsd.cloudfront.net/gsk-patient-level-data-sharing-july2025-1-Bgwa1UthxvluYbWYTThw.pdf

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing GSK4024484C in people with Malaria, Falciparum, run by GlaxoSmithKline at 1 site in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 22 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Percentage of participants reporting serious adverse events (SAEs) after single ascending doses (time frame: From the signing of the informed consent (Day -2) until the follow up contact (Day 38 +/- 3 days post dose)). The study lists 8 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Jul 2026.

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